Kate Middleton dazzles in Alexander McQueen and Princess Diana's tiara for Trump state banquet

U.S. President Trump's State Visit To UK - Day One

The royal family is pulling out all the stops for President Trump's three-day state visit to the UK this week. For the Windsors, that means a tour of Westminster Abbey, tea at Clarence House and, of course, the state banquet on Monday night. Dignitaries and royals gathered at Buckingham Palace to hear speeches from both President Trump and Her Majesty during the black-tie affair.

While the Duchess of Cambridge wasn't there to welcome the Trumps to Buckingham Palace or Westminster Abbey, the mum-of-three was spotted arriving at the affair alongside Prince William. The 37-year-old royal opted for a gorgeous all-white gown by her go-to designer Alexander McQueen, which she paired with Princess Diana's Lovers Knot tiara and the Queen Mother's sapphire and diamond earrings.

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Kate Middleton at the state banquet
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Kate Middleton at the state banquet
LONDON, UNITED KINGDOM - JUNE 03: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge departs Kensington Palace to attend a State Banquet at Buckingham Palace on day 1 of US President Donald Trump's State Visit to the UK on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, UNITED KINGDOM - JUNE 03: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge depart Kensington Palace to attend a State Banquet at Buckingham Palace on day 1 of US President Donald Trump's State Visit to the UK on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Max Mumby/Indigo/Getty Images)
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
Prime Minister Theresa May and the Duke of Cambridge, followed by the Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin, as they arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
Prime Minister Theresa May and the Duke of Cambridge, followed by the Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin, as they arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
The Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery during the State Banquet at Buckingham Palace, London, on day one of the US President's three day state visit to the UK.
Britain's Catherine, Duchess of Cambridge (L) walks with US Secretary of Treasury Steven Mnuchin as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Catherine,Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery for a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones- WPA Pool/Getty Images)
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Kate also debuted her sash of the Royal Victorian Order for the first time, which she was honoured with by Queen Elizabeth last year for her work and dedication to the royal family.

The royal was paired with Secretary of the Treasury Steve Mnuchin for the banquet -- the two entered the hall side by side and were seated next to each other for the dinner.

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Royal state banquet with the Trumps
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Royal state banquet with the Trumps
Britain's Queen Elizabeth II (3R), US President Donald Trump (L), and US First Lady Melania Trump (R) arrive inthe Music Room to pose for a photograph ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Foreign Secretary Jeremy Hunt and his wife Lucia arrive to attend a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (2L), US President Donald Trump (L), US First Lady Melania Trump (C), and Britain's Camilla, Duchess of Cornwall (2R) and Britain's Prince Charles, Prince of Wales arrive in the Music room to pose for a photograph ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Alastair Grant / POOL / AFP) (Photo credit should read ALASTAIR GRANT/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (3R), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (2L), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (C), US President Donald Trump (L) and US First Lady Melania Trump pose for a photograph in the Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (3R), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (2L), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2L), US President Donald Trump (L), US First Lady Melania Trump (C), Britain's Prince Charles, Prince of Wales (2R) and Britain's Camilla, Duchess of Cornwall pose for a photograph ahead of a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: (L-R) U.S. President Donald Trump, Queen Elizabeth II, First Lady Melania Trump, Prince Charles Prince of Wales and Camilla Duchess of Cornwall attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
President Donald Trump and first lady Melania Trump walk with Queen Elizabeth II, followed by first lady Melania Trump, Prince Charles, and Camilla, Duchess of Cornwall, as they make their way into the Music Room for a State Banquet at Buckingham Palace, Monday, June 3, 2019, in London. (Doug Mills/Pool Photo via AP)
Britain's Catherine, Duchess of Cambridge (L) walks with US Secretary of Treasury Steven Mnuchin as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
From left, US President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
From left, US President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
Britain's Queen Elizabeth II, centre poses for a photo with US President Donald Trump, left and first lady Melania Trump ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
From left, President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (Doug Mills/Pool Photo via AP)
Britain's Prime Minister Theresa May (L) walks with Britain's Prince William, Duke of Cambridge (C) followed by Britain's Catherine, Duchess of Cambridge (3L) as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: A general view of the State Banquet for U.S. President Donald Trump and First Lady Melania Trump at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
Britain's Queen Elizabeth II hosts US President Donald Trump and the US First Lady for a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
Britain's Prime Minister Theresa May (L) walks with Britain's Prince William, Duke of Cambridge as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Catherine,Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery for a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II make a toast during a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump makes a speech as Queen Elizabeth II listens during a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
Britain's Prince Charles, Prince of Wales (R) walks with US First Lady Melania Trump as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (R) makes a speech as she hosts US President Donald Trump and the US First Lady for a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (R) arrive in the Music room to pose for a photograph, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Alastair Grant / POOL / AFP) (Photo credit should read ALASTAIR GRANT/AFP/Getty Images)
RETRANSMITTED CORRECTING BYLINE (left to right) US President Donald Trump, Queen Elizabeth II, Melania Trump, the Prince of Wales and the Duchess of Cornwall, during a group photo ahead of the State Banquet at Buckingham Palace, London, on day one of US President Donald Trump's three day state visit to the UK.
RETRANSMITTED CORRECTING BYLINE US President Donald Trump and Queen Elizabeth II during a group photo ahead of the State Banquet at Buckingham Palace, London, on day one of US President Donald Trump's three day state visit to the UK.
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